HCID 86738404, compound → HCID 13770480, compound

Participants

Reaction Steps

A solution of 0.4 g of the product of Step A in 5 ml of acetic anhydride was refluxed for 21/2 hours and was then cooled during which it solidified into a buff crystalline solid. The solid was triturated with aqueous sodium carbonate solution and was filtered. The product was washed with water and dried in vacuo to obtain 0.385 g of 4,5-dihydro-5-ethyl-4-oxo-imidazo-[1,2-a]-quinoxaline-2-carbonitrile in the form of a crystalline solid melting at >330° C.

Provenance & Evidence